1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f149fa3f12786c2a91e0ee5737de20920180840e13162371cefad7429b08c6c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/040b1740-1a5f-496e-a7a4-a4d96337a0a2.json and https://artists.proofprofile.net/proofs/artist/040b1740-1a5f-496e-a7a4-a4d96337a0a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a3abf7966bd09f1cfead58d82c3293b78091a6f5f4829fd047d64173f58d11. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLML69800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d933a0aaed0407a3b350f58353c4832269940d761e4909e044ef72f5948b010. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCEN1000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b91cd174b9a5d00b99b85ff430120733597d71428016645362950aa965194c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:07:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLML60300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2482a26ed8d8f1ca7bfa1d9a19ac10763c25eaa5400b4bc69d86789dd709446. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO10601433.
Common Ground (Audé & Garcia Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa164b4e2654cf4a5887b55775113c88e85949e4db7b6fd26140df2e6c20083a5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDOD5339657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29b151e460b476f736089833dd3062c824ab0acf572e3e9580015f85cb382fb. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDOD5339658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503c988cb59fb4743b8e43d5ad5e0d153242e7d3149292707d5db03466785958. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2403348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3ce60d0a437627071472428fff43d3f5493fa0cc3c0c36676512d7695d1d96. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2467989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314cd48de61b034667f9498888863c1079f199be2c41ac4fb6374c8c3441a795. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2494158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f7bbacd12b2059d90a3968ec07d690c1eb8eded2a17afc97f3b06b2f31a293. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2527642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c357e12da498fbafa9c0caea6a9495a94c1395e0e6a056864364331c7c3120f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2528965.
Because We Want To - Tall Paul Vs. Billie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d65d729e8d492b4b19a75a718195ed3aab0091e1b365d3cb671e95b62a18a57. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAAA9800780.
That's The Way Love Is - Tall Paul Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642040f4903d900ad4506704763f4bbd9836c5d4db14f11adb342584f0d5ccf1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUS12100465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f60b5e16111477402a42a2db6bd08e049284915cca96fcba321d1eea074964. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD682402386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10751943535d7af03f3388797056464218e4ccad87be1a91ebfaf5957668e2e6. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBEU9700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69262b0a2b7a5f10c78bf769be972b3cd0781b7858b8e3209974d33c5f9e0ca4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBEU9700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1625df8e06d5563a759a77e0e2b168428b6845f475c23311953ca35a0be10e45. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF712400971.
Let Me Show You - Tall Paul Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef189d5c9b665824e389738271f98cb381c1ef030fca757798cb4c9bb9bdf900. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAAA9800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa34f7a90aedcecc955cb80ae3dbeaea5e83a0ac41c67091b98e47303a85d672. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBDBH9800225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1625df8e06d5563a759a77e0e2b168428b6845f475c23311953ca35a0be10e45. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF712400971.